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i hAvE BEEn Doing

have been doing 现在完成进行时.现在完成进行时用法 一、现在完成进行时的谓语动词构成 have/has been doing 二、现在完成进行时的功能 (一)表示从过去某时开始一直持续到现在的动作,并且还将持续下去. I have been learning

HAVE DONE STH意思是已经完成某行为或动作;HAVE BEEN DOING STH意思是此动作或行为从过去某一时间开始,现在仍在进行,将在以后某时间停止.

I am doing是现在完成时态 I have been doing 是现在完成进行时 现在完成进行时与现在完成时的比较:1.相同点:当表示过去发生且一直持续到现在的动作时,两者通用;现在完成进行时只是现在完成时的一种强调时态而已.如 I have played for

had been doing这是过去完成进行时;表示从过去的某一个时间点开始做某事一直持续到过去的某个时间点并且仍在进行.扩展资料:特别含义:1、尚未完成:He had been writing the novel.(他没有完成它)2、企图:He had been studying the

I have been to+地点.“曾去过”eg: I have been to Hong Kong.I have been doing ”我一直在做“eg: I have been learning how to play the piano since I was 6.I have been + to/ doing 同上解释.I have already read this book. 我已读过这本书.I bought a car once. 我曾经买过一辆车.

现在完成进行时,表示一直在做某事例如I have been teaching for ten years.

havehas 通常是用在第三人称单数,如:he / she

现在完成进行时(have been doing):和现在进行时很像 1) 用法:表示某一动作开始于过去某一时间,延续或重复地出现至今,或将继续延续至将来. 例:we have been working on this project for over a month now.(到目前为止,我们一直在处理那个项目,已经花了一个多月时间了.) 2) 注意事项:与现在完成时相比,现在完成进行时更强调:在从过去到现在的时间里,动作或状态一直持续或一直反复出现.3)have been +v后面是过去分词,不是过去式的.这种用法是被动语态变为完成式的时候用的. i lost my keys. my keys have been lost.

这里的have been doing现在完成进行时,表示已经完成的动作,加上进行时been doing的形式使时态更生动,可翻译为刚刚还在泥坑里跳来跳去.

having done本来就很少用,用也是用在已结束的动作上 After turned off the lights, he left. have been doing是说一直在做某事 因此,很少有说having been doing的. Though having been always trying hard, they haven't made any progress yet. 尽管

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